SG117AT-883B

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SG117AT-883B Application Field and Working Principle

SG117AT-883B is a linear voltage regulator, part of a family of products designed and manufactured by SANYO Semiconductor Co., Ltd. SG117AT-883B voltage regulator is designed to meet the requirements of the industrial, automotive, handheld and portable electronic device applications where improved efficiency and good output voltage accuracy are desired.SG117AT-883B voltage regulator is called “low drop-out voltage regulator”, because it can reduce the dropout voltage for low output current. It includes an N-channel MOSFET and uses pulse frequency modulation (PFM) control to keep the circuit stable, resulting in excellent performance at light load.SG117AT-883B linear voltage regulator includes the process of voltage regulation, voltage boost, and short-circuit protection on one chip to ensure the stability and reliability of digital products. SG117AT-883B is available in single output voltage, 3.3V, 5.0V and 12V.Working PrincipleSG117AT-883B uses an N-channel MOSFET to control the output voltage. When a voltage is applied to the input pin, the MOSFET current is increased, reducing the resistance between the output terminals and providing the correct output voltage.SG117AT-883B helps reduce the output impedance of the supply, making it more stable and reliable, and improving efficiency. The MOSFET is usually operated in a duty cycle control mode, which keeps the current in the circuit within a certain limit for better efficiency.SG117AT-883B also includes short-circuit protection and over-temperature protection. When the voltage of the input pin exceeds the maximum allowed voltage, the MOSFET will turn off and the regulator will stop providing current.In addition, the SG117AT-883B can also provide additional protection against over-voltage, under-voltage, over-current and over-temperature. When any of these conditions is detected, the regulator will shut down and enter a fault mode.Overall, the SG117AT-883B linear voltage regulator is designed to provide easy control, high efficiency and good accuracy. With its simple operation and high reliability, it is suitable for a variety of applications in the industrial, automotive, handheld and portable electronics market.

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